 | William Perren Maycock - 1902 - 486 стор.
...across the conductor, with the palm facing Fig. 12. Direction of the Magnetic Field round a Conductor. the conductor, and the outstretched thumb pointing in the direction of the current: then the fingers curled round the wire will denote the positive direction along the conductor's circular lines of force.... | |
 | William Perren Maycock - 1904 - 464 стор.
...lengthways on the solenoid, or on the coil of the electro-magnet, with the palm facing the solenoid or coil, and the outstretched thumb pointing in the direction of the current: then the fingers will point in the + direction along the external field, ie, towards the 8. pole. (6) CLOCKFACE KULE (Fig.... | |
 | John Oren Reed, Karl Eugen Guthe - 1911 - 658 стор.
...These experimental results may be expressed by the following rule : Grasp the wire with the right hand, the outstretched thumb pointing in the direction of the current; then the fingers indicate the 'ense of the lines of magnetic induction / \ / \ (Fig. 133). / \ / \ .r, • , . • /... | |
 | John Oren Reed, Karl Eugen Guther - 1911 - 664 стор.
....experimental results may be expressed by the following rule : Grasp the wire with the right hand, the outstretched thumb pointing in the direction of the current; then the fingers indicate the sense of the lines of magnetic induction (Fig. 133). This relation may also be expressed... | |
 | John Oren Reed, Karl Eugen Guthe - 1911 - 670 стор.
...These experimental results may be expressed by the following rule : Grasp the wire with the right hand, the outstretched thumb pointing in the direction of the current; then the fingers indicate the sense of the lines of magnetic induction / \ / \ (Fig. 133). / \ / \ This relation may... | |
 | Silas Ellsworth Coleman - 1911 - 672 стор.
...serviceably stated in terms of the right-hand rule: Grasp the wire with the right hand, with the extended thumb pointing in the direction of the current; then the fingers will point round the wire in the direction of the lines of force (Fig. 389). With the aid of this rule we... | |
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FiG 133 that the sense of the field is reversed with reversal of the current, while the direction of the field remains the same. These experimental results may be expressed by the following rule : Grasp the wire with the right hand, the outstretched thumb... 